CN108314385A - A kind of C40 regeneration concretes and preparation method thereof - Google Patents
A kind of C40 regeneration concretes and preparation method thereof Download PDFInfo
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- CN108314385A CN108314385A CN201810287549.1A CN201810287549A CN108314385A CN 108314385 A CN108314385 A CN 108314385A CN 201810287549 A CN201810287549 A CN 201810287549A CN 108314385 A CN108314385 A CN 108314385A
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- Prior art keywords
- coarse aggregate
- aggregate
- regenerated
- cement
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Core of the invention task is to provide a kind of C40 regeneration concretes and preparation method thereof, and constituent includes cement, water, fine aggregate and coarse aggregate；Cement, water, fine aggregate, coarse aggregate match ratio be 1: 0.49: 0.12: 1.55: 3.3；The coarse aggregate includes common coarse aggregate and regenerated coarse aggregate, wherein the match ratio of common coarse aggregate and regenerated coarse aggregate is 1:1.5, the particle size range of common coarse aggregate and regenerated coarse aggregate is 5mm~26.5mm；Cement used in test specimen is Portland cement, and regenerated coarse aggregate used is concrete waste material.There is simple for process, production cost low advantage while ensureing recycled concrete strength, to improve the application value of regeneration concrete.
Description
Technical field
The invention belongs to building material technical fields, more particularly to technical field of concrete.
Background technology
The raw material of concrete includes coarse aggregate, cement, water, fine aggregate, these raw materials are according to certain match ratio by stirring
The machine of mixing mixes and stirs, and then pours and builds up concrete structure.Coarse aggregate plays skeleton function in concrete, is the guarantee of concrete strength.
Currently, coarse aggregate is usually two kinds natural of rubble and cobble.Rubble be natural rock, cobble through Mechanical Crushing, be sieved into
, grain size is more than the particle of 5mm.Cobble be made of weathering, potamic transport and sorting, accumulation, grain size be more than 5mm
Particle.
Regeneration concrete is to replace one kind prepared after natural coarse aggregate in the normal concrete of part with regenerated coarse aggregate
Concrete.Recycled aggregate itself has the characteristic different from natural coarse aggregate, as what recycled aggregate generated in shattering process splits
Seam, keeps the crush index of recycled aggregate low；Original old cement mortar is adhered on recycled aggregate surface, makes the porosity ratio of recycled aggregate
Natural aggregate is high.These characteristics have adverse effect on the intensity of regeneration concrete, under identical proportioning, regeneration concrete
Intensity be generally below normal concrete, and intensity is in uncontrollable state, influences its use.
Land resource belongs to non-renewable resources, people are to the unreasonable of soil as coal, oil and natural gas resource
Development and utilization, the loss of soil resource can be caused, and the self-assembling formation of natural sand stone needs very long geological epoch.And with
Energy-saving and emission-reduction, the environmental protection ideas of resource circulation utilization deepens continuously, and the recycling problem of discarded concrete has become state
The inside and outside focus that research is recycled about building waste.
Invention content
The present invention provides a kind of C40 regeneration concretes and preparation method thereof, and the regeneration concrete includes cement, water, thin
Aggregate, coarse aggregate；The match ratio of wherein common coarse aggregate and regenerated coarse aggregate is 1:1.5, and the grain size of the regenerated coarse aggregate
Ranging from 5mm~26.5mm, the concrete that through the invention prepared by the method have good intensity, and simple for process,
Production cost is low.
To achieve the above object, the present invention adopts the following technical scheme that.
A kind of C40 regeneration concretes, component include cement, water, fine aggregate, coarse aggregate match ratio be 1: 0.49:
1.55∶3.3；The coarse aggregate includes common coarse aggregate and regenerated coarse aggregate, wherein common coarse aggregate and regenerated coarse aggregate are matched
Composition and division in a proportion is 1:1.5, the particle size range of common coarse aggregate and regenerated coarse aggregate is 5mm~26.5mm；Cement used in test specimen is common
Portland cement, regenerated coarse aggregate used are concrete waste material.
Further, the apparent density of the regenerated coarse aggregate is 2527kg/m3, the common coarse aggregate be basalt,
Grading is good, 5mm~10mm, 10mm~16mm, 16mm~26.5mm ratio is 6: 4.1: 2.5.
Further, the fine aggregate is natural river sand, fineness modulus 2.1, bulk density 1240kg/m3。
A kind of preparation method of C40 regeneration concretes, includes the following steps：
(1) regenerated coarse aggregate is prepared；
(2) match ratio described in accordance with the claim 1 weighs fine aggregate, regenerated coarse aggregate and common coarse aggregate and is put into and stirs
It mixes in machine and is stirred；
(3) after fine aggregate, regenerated coarse aggregate and common coarse aggregate stir evenly, match according still further to described in claim 1
Cement is added composition and division in a proportion, and is stirred；
(4) after fine aggregate, regenerated coarse aggregate, common coarse aggregate and cement mixing it is uniform after, then in the mixture plus water
Stirring, mixing time are 12~16min, and regenerated concrete mixture is made；
(5) regenerated concrete mixture made of step (4) poured, vibrated.
Further, the specific steps that step (1) prepares regenerated coarse aggregate include：
Then 1. smashing waste concrete is screened broken concrete waste material using coarse aggregate screening plant,
It is spare as regenerated coarse aggregate to sift out the concrete waste material that grain size is 5mm~26.5mm, while rejecting needle-shaped, flake waste；
2. being started the cleaning processing to the regenerated coarse aggregate for being crushed, filtering out, surface soil mud impurity is removed；
It will be dried by the cleaned regenerated coarse aggregate of step, reduce moisture content.
Beneficial effects of the present invention are：The regeneration concrete is by cement, water, fine aggregate, regenerated coarse aggregate and common thick
Aggregate is made, and optimizes its match ratio, and the particle size range of heretofore described regenerated coarse aggregate is 5mm~26.5mm, and
It ensure that the intensity of the regeneration concrete, and simple for process, discarded concrete recycled, be conducive to soil
The protection of resource, while ensureing environmental protection under, further reduced the production cost of enterprise.
Specific implementation mode
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment clear, complete
Ground describes, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is the one of the present invention
Section Example, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not paying creativeness
The other embodiment obtained under the premise of labour, belongs to the scope of protection of the invention.In addition, what is be previously mentioned in text is all
/ connection relation is connect, not singly refers to component and directly connects, and referring to can be according to specific implementation situation, by adding or reducing connection
Auxiliary, to form more preferably coupling structure.Each technical characteristic in the invention, under the premise of not conflicting conflict
It can be with combination of interactions.
Embodiment 1
A kind of C40 regeneration concretes, component include cement, water, fine aggregate, coarse aggregate match ratio be 1: 0.49:
1.55∶3.3；The coarse aggregate includes common coarse aggregate and regenerated coarse aggregate, wherein common coarse aggregate and regenerated coarse aggregate are matched
Composition and division in a proportion is 1:1.5, the particle size range of common coarse aggregate and regenerated coarse aggregate is 5mm~26.5mm；Cement used in test specimen is common
Portland cement, regenerated coarse aggregate used are concrete waste material.
Further, the apparent density of the regenerated coarse aggregate is 2527kg/m3, the common coarse aggregate be basalt,
Grading is good, 5mm~10mm, 10mm~16mm, 16mm~26.5mm ratio is 6: 4.1: 2.5.
Further, the fine aggregate is natural river sand, fineness modulus 2.1, bulk density 1240kg/m3。
A kind of preparation method of C40 regeneration concretes, includes the following steps：
(1) regenerated coarse aggregate is prepared；
(2) match ratio described in accordance with the claim 1 weighs fine aggregate, regenerated coarse aggregate and common coarse aggregate and is put into and stirs
It mixes in machine and is stirred；
(3) after fine aggregate, regenerated coarse aggregate and common coarse aggregate stir evenly, match according still further to described in claim 1
Cement is added composition and division in a proportion, and is stirred；
(4) after fine aggregate, regenerated coarse aggregate, common coarse aggregate and cement mixing it is uniform after, then in the mixture plus water
Stirring, mixing time are 12~16min, and regenerated concrete mixture is made；
(5) regenerated concrete mixture made of step (4) poured, vibrated.
Further, the specific steps that step (1) prepares regenerated coarse aggregate include：
Then 1. smashing waste concrete is screened broken concrete waste material using coarse aggregate screening plant,
It is spare as regenerated coarse aggregate to sift out the concrete waste material that grain size is 5mm~26.5mm, while rejecting needle-shaped, flake waste.
2. being started the cleaning processing to the regenerated coarse aggregate for being crushed, filtering out, surface soil mud impurity is removed；
It will be dried by the cleaned regenerated coarse aggregate of step, reduce moisture content.
Heretofore described regeneration concrete test block can be prepared by above step.
The better embodiment of the present invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make various equivalent modifications or be replaced under the premise of without prejudice to spirit of that invention
It changes, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (5)
1. a kind of C40 regeneration concretes, constituent includes cement, water, fine aggregate and coarse aggregate, which is characterized in that cement,
Water, fine aggregate, coarse aggregate match ratio be 1: 0.49: 1.55: 3.3；The coarse aggregate includes common coarse aggregate and the thick bone of regeneration
Material, wherein the match ratio of common coarse aggregate and regenerated coarse aggregate is 1:1.5 the particle size range of common coarse aggregate and regenerated coarse aggregate
For 5mm~26.5mm；Cement used in test specimen is Portland cement, and regenerated coarse aggregate used is concrete waste material.
2. a kind of C40 regeneration concretes according to claim 1, which is characterized in that the regenerated coarse aggregate it is apparent close
Degree is 2527kg/m3, the common coarse aggregate be basalt, grading is good, 5mm~10mm, 10mm~16mm, 16mm~
The ratio of 26.5mm is 6: 4.1: 2.5.
3. a kind of C40 regeneration concretes according to claim 1, it is characterised in that the fine aggregate is natural river sand,
Fineness modulus is 2.1, bulk density 1240kg/m3。
4. a kind of preparation method of C40 regeneration concretes, which is characterized in that include the following steps：
(1) regenerated coarse aggregate is prepared；
(2) match ratio described in accordance with the claim 1 weighs fine aggregate, regenerated coarse aggregate and common coarse aggregate and is put into blender
In be stirred；
(3) after fine aggregate, regenerated coarse aggregate and common coarse aggregate stir evenly, according still further to match ratio described in claim 1
Cement is added, and is stirred；
(4) after fine aggregate, regenerated coarse aggregate, common coarse aggregate and cement mixing it is uniform after, then in the mixture plus water stirring,
Mixing time is 12~16min, and regenerated concrete mixture is made；
(5) regenerated concrete mixture made of step (4) poured, vibrated.
5. a kind of preparation method of C40 regeneration concretes according to claim 4, which is characterized in that step (1) is prepared again
The specific steps of raw coarse aggregate include：
1. then broken concrete waste material is screened using coarse aggregate screening plant, is sifted out by smashing waste concrete
Grain size is that the concrete waste material of 5mm~26.5mm is spare as regenerated coarse aggregate, while rejecting needle-shaped, flake waste.
2. being started the cleaning processing to the regenerated coarse aggregate for being crushed, filtering out, surface soil mud impurity is removed；
3. by 2. cleaned regenerated coarse aggregate is dried by step, moisture content is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810287549.1A CN108314385A (en) | 2018-04-03 | 2018-04-03 | A kind of C40 regeneration concretes and preparation method thereof |
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| CN201810287549.1A CN108314385A (en) | 2018-04-03 | 2018-04-03 | A kind of C40 regeneration concretes and preparation method thereof |
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| CN108314385A true CN108314385A (en) | 2018-07-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112608089A (en) * | 2021-01-07 | 2021-04-06 | 宜宾双三商品混凝土有限公司 | Concrete material applied to civil engineering and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5869768A (en) * | 1981-10-18 | 1983-04-26 | 株式会社 満尾総合研究所 | Manufacture of heat resistant concrete |
| CN104817306A (en) * | 2015-04-17 | 2015-08-05 | 中国二十二冶集团有限公司 | Method for preparing C40 concrete by artificial rock ash and mineral waste |
| CN105036660A (en) * | 2015-08-10 | 2015-11-11 | 河海大学 | C40 recycled aggregate concrete and preparation method thereof |
| CN107500667A (en) * | 2017-09-25 | 2017-12-22 | 佛山科学技术学院 | A kind of regeneration concrete and preparation method thereof |
-
2018
- 2018-04-03 CN CN201810287549.1A patent/CN108314385A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5869768A (en) * | 1981-10-18 | 1983-04-26 | 株式会社 満尾総合研究所 | Manufacture of heat resistant concrete |
| CN104817306A (en) * | 2015-04-17 | 2015-08-05 | 中国二十二冶集团有限公司 | Method for preparing C40 concrete by artificial rock ash and mineral waste |
| CN105036660A (en) * | 2015-08-10 | 2015-11-11 | 河海大学 | C40 recycled aggregate concrete and preparation method thereof |
| CN107500667A (en) * | 2017-09-25 | 2017-12-22 | 佛山科学技术学院 | A kind of regeneration concrete and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112608089A (en) * | 2021-01-07 | 2021-04-06 | 宜宾双三商品混凝土有限公司 | Concrete material applied to civil engineering and preparation method thereof |
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Application publication date: 20180724 |